LinkedIn's user base has risen to more than 300 million people across more than 200 countries and territories worldwide, the company said Friday, with 23 million of those members signing on since the beginning of the year.

Mountain View, Calif.-based LinkedIn now retains more than 100 million members in the US but says it has its eye on the entire global workforce of approximately 3.3 billion people.

Deep Nishar, senior vice president of products and user experience at LinkedIn, said in a blog post that mobile would be key to reaching that target.

"We know mobile is critical," Nishar wrote. "Later this year, we are going to hit our mobile moment, where mobile accounts for more than 50 percent of all global traffic. Already, our members in dozens of locations, including Costa Rica, Malaysia, Singapore, Sweden, United Arab Emirates, and the United Kingdom, use LinkedIn more on their mobile devices than on their desktop computers. Every day we see an average of 15 million profile views, 1.45 million job views, and 44,000 job applications in over 200 countries through mobile."

LinkedIn was trading at $175.42 a share as of 12:46 p.m. PT Friday, up $3.60, or 2.10 percent.